Cementitious mixture for materials having “easy-to-clean” properties by modification of the unset material by means of fluorine-containing active ingredients

US9193628B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Manuel Friedel · Zürich, CH
• Philipp Albert · Bad Kötzting, DE
• Burkhard Standke · Soest, DE
• Spomenko Ljesic · Rheinfelden (Baden), DE

Key dates

• Filing date: Mar 30, 2011
• Grant date: Nov 24, 2015
• Expiry date: Jul 27, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2111/27
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention relates to a hydraulically setting mixture comprising: a) 6% to 25% by weight of cement, b) 50% to 90% by weight of at least one aggregate, and c) 0.01% to 8% by weight of at least one fluoroorganyl-substituted silicon compound, and also to materials produced from this mixture, more particularly components, concrete articles or mouldings. The invention further relates to the use of a hydraulically setting mixture of the invention for producing materials, more particularly components, concrete articles or mouldings, for example as facing concrete, where the surface of the materials exhibits only relatively low soiling tendency (“easy-to-clean” property) even on abrasion.